1021153252053 has 16 divisors (see below), whose sum is σ = 1485405988416. Its totient is φ = 618842355840.

The previous prime is 1021153252043. The next prime is 1021153252061. The reversal of 1021153252053 is 3502523511201.

It is not a de Polignac number, because 1021153252053 - 2⁹ = 1021153251541 is a prime.

It is a super-5 number, since 5×1021153252053⁵ (a number of 61 digits) contains 55555 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1021153252053.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021153252043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 415600 + ... + 1488297.

It is an arithmetic number, because the mean of its divisors is an integer number (92837874276).

Almost surely, 2^{1021153252053} is an apocalyptic number.

It is an amenable number.

1021153252053 is a deficient number, since it is larger than the sum of its proper divisors (464252736363).

1021153252053 is a wasteful number, since it uses less digits than its factorization.

1021153252053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1920164.

The product of its (nonzero) digits is 9000, while the sum is 30.

Adding to 1021153252053 its reverse (3502523511201), we get a palindrome (4523676763254).

The spelling of 1021153252053 in words is "one trillion, twenty-one billion, one hundred fifty-three million, two hundred fifty-two thousand, fifty-three".